View Compilation Error

0_0_29713324_4577.c: In function 'main':
0_0_29713324_4577.c:4:18: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
 #define cases(t) for (int cas = 1; cas <= (int)t; ++cas)
                  ^
0_0_29713324_4577.c:19:5: note: in expansion of macro 'cases'
     cases(t) {
     ^
0_0_29713324_4577.c:4:18: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
 #define cases(t) for (int cas = 1; cas <= (int)t; ++cas)
                  ^
0_0_29713324_4577.c:19:5: note: in expansion of macro 'cases'
     cases(t) {
     ^